chore(main): release google-ads-data_manager 0.3.0#32906

release-please[bot] wants to merge 1 commit intomaingoogleapis/google-cloud-ruby:mainfrom

release-please--branches--main--components--google-ads-data_managergoogleapis/google-cloud-ruby:release-please--branches--main--components--google-ads-data_managerCopy head branch name to clipboard